Molding apparatus for the manufacture of pipe



(No Model.)

W. IRETON & S.-E., WHITELOGK.

MQLDING APPARATUS FOR THE MANUFACTURE OF PIPE. No. 278,663. APatentedMay 29,1883;

v I in, A y

s j 2 17 4 e my; g 5 m,

N. versus. Plwkwulhugnpher. Wahi nnnn c NITED STATES PATENT OFFICE;

WILLIAM IRETON AND SAMUEL E. WHITELOOK, OF CAMDEN, NEW JERSEY.

MOLDING APPARATUS FQR THE MANUFACTURE OF PIPE.

SPECIFICATION formingpart of Letters Patent No. 278,6,63, dated May 29,1883.

Application filed April 9, 1883, (No model.) I

To all whom it may concern Be it known that we, WILLIAM IRETON andSAMUEL E. WHITELOCK, of the city of amden, county of Camden, State ofNew Jersey, it

have invented anImprovement', in Molding Apparatus for the Manufactureof Pipe, of which the following is a specification.

Our invention has reference to molding apparatus, but particularly to animprovement on Letters Patent granted to William lrcton, March 13, 1883,and No. 273,738; and it consists of the cam-shapedformer therein shownprovided with an adjustable device by which the thickness of the metalpipe tobe cast may be varied without changing the former and, further,in a suitable construction of support for the bottom, of said former,whereby the (mouth of the pipe-mold may be packed ina manner similar tothe body of thejpipe, and in details of construction, as fullyset forthin the followingspecification and shownin the accompanyiu g drawings,which form partthereof.

rious diameters without changing the former,

means tosupportthe sand in the flask after the former of the moldingapparatus has been,

The object of our invention is to provide a molding apparatusof thiskind with means whereby the former may make the mold of vaas a whole, togive different weights of pipe when cast by varying thetthickness ofmetal;

and,'fnrther, to provide means to pack the sand in the flask to form theenlarged part or mouth of the pipamold, and also to provide removedtherefrom and the flask is raised from l and 1).

its support and placed inthe casting-pit. In the drawings, Figure 1 is asectional elevation of our improved pipe-molding apparatus. Fig. 2 is across-section of same on line a0 a2, and Fig. 3 is a cross-section online y y.

A is the former, which is provided with the straight or spiralcam-groove A, as fully set out in the patent hereinbefore referred to.

The bottom is reduced in diameter, and is'proevident, also, that 'by"arying the diameter of when cast, will be more orless, and if the corethe sleeve B the external diameter of the pipe,

is uniform the metal in the pipe must vary.

This is important, as in some class of work set forth in the previouspatent referred to, having the hopper I at the top, as well as bearingfor the former A. At the bottom itis made somewhat bell-mouthed, andprovided with a flange, H, to which is secured the ahnnlar plate G bybolts g or other equivalent means; or the'plate G may be cast with saidflask. This flask and plate then rest upon and may be temporarily boltedor clamped to the support F, having recessed aperture f,

preferably provided with beveled centering-- walls e 0.

Supported in the recesses of plate'F is the head 1),,having the annularpart D, which is provided with the cam-groove E, which forms acontinuous groove with A of the former, the said part D, when rotated,molding the outer surface of the bell-mouthed end of the pipe-flask, itsinterior fitting snugly against the sleeve 13, and to which it acts as ahearing. The center D of headD projects up into the space 0 of theformer A, is preferably madeconical on the top, as at 61 and has groovesd, into which the former-lugs c fit, to the end that when the former isrotated the head will rotate also. An annular space is formed betweenthe central part, D and annular flange part D, into which the bottom ofthe former fits, as shown, and to preventcloggin'g by sand apertures dare made, through the bottom, through which any sandmay be brushed,

The operatiouis as follows: The head D being placed in the supportF andthe flask H secured thereon, the former is put in position and sand isadmitted and placedaround the same by hopper I and apertures at thetop..

Now, as the former and head are rotated the sand is admitted by groove iand is packed solid, and when completed the former is raisedwhile beingrotated, the ring or sleeve smoothing up the interior of the mold. Whenthe former is removed the flask is taken away to receive its core andplaced in the castingpit, and the head D remains in the support, readyfor another flask.

We do not limit ourselves t( the construction shown, as it maybemodified in various "ways without departing from our invention.

Having now described our invention, What we claim as new, and desire tosecure by Letters Patent, is-- 1. In apparatus for molding pipe, 850., astationary flask, in combination with a rotating former supportedagainst lateral pressure in said flask, adapted during its revolutionsto compress the sand within said flask into the requisite shape, andatrotating molding-head to form the mold for the bell-mouthed end of thepipe, substantially as and for the purpose specified.

2. In molding apparatus, a stationary flask, in combination with acylindrical former supported, in said flask, arranged to rotate withinsaid flask, having its surface made cam shape, and a rotatingmolding-head to form the mold for the bell-mouthed end of the pipe,substantially as and forthe purpose specified.

3. In amolding apparatus, astationary flask, in combination with aformer arranged to rotate within said flask, supported atthe bottom byrotating molding-head arranged to rotate in the bottom of theflask,thesaid former having a longitudinal cam-groove arranged upon its surface,substantially as and for the purpose specified.

4. In a. molding-apparatus,a stationary flask, in combination with a.former arranged to rotate within said flask, supported atthe bottom byrotating molding-head arranged to rotate in the bottom of the flask,thesaid former and head ha7ing longitudinal cam grooves arranged upon theirsurfaces, substantially as and for the purpose specified.

5. In molding apparatus, a stationary flask, in combination with aformer supported in hearings in said' flask, arranged to rotate withinsaid flask, having a spirally-arranged cam-groove about its surface, anda rotating molding-head to form the mold for the bellmouthed end of thepipe, substantially as and for the purpose specified.

vsupports for the former, both at top and bottom, in combination with 'arotating former provided with corresponding bearings, having its surfacemade cam-shaped, being provided in its upper hearingwith a feed grooveor slot to admitsand to the interior of the flask during the operationof packing, and a rotating molding-head to form the mold for thebellmouthed end of the pipe, having a cam-groove therein to compress thesand, substantiallyas and for the purpose specified.

- 8. In apparatus for molding pipe, 850., a stationary flask,incombination with a rotating former supported against lateral pressurein said flask, adapted during its revolutions to compress the sandwithinsaid flask into the requisite shape, and a removable smoothingbandarranged about the bottom of said former, substantially as and for thepurpose speci- 9. In apparatus for molding pipe, &c., a stationaryflask, in combination with a rotating former supported against lateralpressure in said flask, adapted during its revolutions to compress thesand within said flask into the requisite shape, a rotating molding-headto form the mold for the bell-mouthed end of the pipe, and a removablesmoothing-band arranged about the bottom of said former, substantiallyas and for the purpose specified.

10. In apparatus for molding pipe, &c., astationary flask, incombination with a rotating former supported against lateral pressure insaid flask, adapted during its revolutions to compress the sand withinsaid flask into the requisite shape, and a plate, Gr, substantially asand for the purpose specified.

11. In apparatus for molding pipe, 850., astationary flask, incombination with a rotating former supported against lateral pressure incompress the sand within said flask into the requisite shape, a rotatingmolding-head to form the mold for the bell-mouthed end of the pipe, anda platc, G, substantially as and for the purpose specified.

12. The combination of flask H, former A, having cam-groove A, head D,plate G, and support F, substantially as and for the purpose specified.

13. The combination of flask H, former A, having cam-groove A, havingband or sleeve B, head D, plate G, and support F, substantially as and.for the purpose specified.

14.. The combination of flask H, former A, having cam-groove A, andhaving band B and head D, substantially as and for the purposespecified.

In testimony of which invention we hereunto set our hands.

WILLIAM IRETON. SAMUEL E. WHITELOOK. Witnesses:

JAMES M. UASSADY, J OHN S. R. OASSADY.

said flask, adapted during its revolutions to

